<template>
  <div>
    <div id="slider" class="mui-slider">
      <div
        id="sliderSegmentedControl"
        class="mui-scroll-wrapper mui-slider-indicator mui-segmented-control mui-segmented-control-inverted"
      >
        <div class="mui-scroll">
          <a
            :class="['mui-control-item',item.id===0? 'mui-active':'']"
            v-for="item in cates" :key="item.id" @click="getPhotoListByCateId(item.id)"
          >{{item.title}}</a>
        </div>
      </div>
    </div>

    <!--图片列表区域-->
    <ul class="photo-list">
  <router-link v-for="item in list" :key = 'item.id' :to = "'/home/photoinfo/' + item.id" tag='li'>
    <img v-lazy="item.img_url">
    <div class="info">
        <h1 class="info-title">{{item.title}}</h1>
        <div class="info-body">{{item.zhaiyao}}</div>
    </div>
  </router-link>
</ul>
  </div>
</template>

<script>
import mui from '../../lib/mui/js/mui.js'

export default {
    data() {
        return {
            cates:[],
            list:[]  // 图片列表
        }
    },
    created(){
        this.getAllCategory()
        this.getPhotoListByCateId(0)
    },
    mounted(){
        mui('.mui-scroll-wrapper').scroll({
	        deceleration: 0.0005 //flick 减速系数，系数越大，滚动速度越慢，滚动距离越小，默认值0.0006
        });
    },
    methods:{
        getAllCategory() {
            // 获取所有的图片分类
            this.$http.get('api/getimgcategory').then(result=>{
                if(result.body.status === 0) {
                    // 手动拼接一个最完整得了列表
                    result.body.message.unshift({title:"全部", id:0})
                    this.cates = result.body.message
                } else {
                    Toast('获取图片列表失败')
                }
            })

        },
        getPhotoListByCateId(cateId) {
            this.$http.get('api/getimages/'+ cateId).then(result=>{
                if(result.body.status === 0) {
                    this.list = result.body.message;
                } else {

                }
            })
        }

    }
};
</script>

<style lang="scss" scoped>
* {
    touch-action:pan-y;
}
.photo-list {
    list-style:none;
    margin: 0;
    padding:10px;
    padding-bottom: 0;
    li{
        background-color: #ccc;
        text-align: center;
        margin-bottom: 10px;
        box-shadow: 0 0 6px #999;
        position:relative;
        img{
            width:100%;
        }
        img[lazy=loading] {
        width: 40px;
        height: 300px;
        margin: auto;
        }
        .info{
            color:white;
            text-align:left;
            position:absolute;
            bottom: 0;
            background-color:rgba(0,0,0,0.4);
            max-height: 84px;
            .info-title{
                font-size:14px;

            }
            .info-body{
                font-size:13px;

            }

        }
    }
}

</style>